Well mechanism



S. N. HALL.

WELL MECHANISM.

APPLICATION FILED SEPT.8, 1920.

1,415,551, Patented May 9, 1922.

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FIBJ.

I //v YEA/TOR pgwmm a a UNETE stares PATENT SAMUEL N. HALL, OF LOS ANGELES, CALIFORNIA, ASSIGNOR TO MAHLON E. L-AYNE,

OF LOS ANGELES, CALIFORNIA.

WELL MECHANISM.

Specification of Letters Patent. Patented Ma 9, 1922.

Application filed September 8, 1920. Serial No. 408,950.

T 0 all whom it may concern:

Be it known that I, SAMUEL N. HALL, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented certain new and useful Improvements in WVell Mechanism, of which the following is a specification.

The invention relates to well mechanism and particularly to rotary or centrifugal pump mechanism, involving the use of a pump placed in or adjacent the water of a well, and power transmission and discharge mechanism extending to the surface of the ground. The invention has for its primary objects: (1) the provision of improved means for packing the pump casing in the well casing, so that such well casing may be used as a combined .well and discharge casing; (2) the provision of improved means of the type specified whereby the pump casing may be located and'packed with respect to the well casing at any desired level in such well casing, and wherein at least a part of the weight of the pump is carried by the shaft casing thus tending to hold such casing straight; the provision of a construction of the type specified having means whereby the pump may be pulled or removed in case the drive shaft is broken; (4) the provision of improved means of the type specified whereby the packing may be re leased or tightened by a relative vertical movement between the drive shaft and its casin and the provision of an improved $7 7 packing construction operable from the surface ofthe ground, wherein the weight of the pump applies tightening pressure to the packing and wherein the packing is located at or adjacent the upper end of the pump casing thus permitting the use of a multi stage pump without the format-ions of pockets along the sides of the pump casing,

such as occurs where the pump casing rests at its lower end on a packing means, such latter arrangement being objectionable in that the sand and dirt fill, the pockets formed between the pump casing and well casing and prevent or interfere with the removal of the pump for replacement or repair. Gertain embodiments of the invention are illustrated in the accompanying drawin s, wherein igure 1 is an assembly view partially in Referring to Fig. 1, the principal .parts I illustrated may be enumeratec as follows: 1 1s the casing of a centrifugal or rotary pump;-2 is a well casing which also acts as a discharge casing and extends to the surface of the ground; 3 is the upper end of the inner portion of the pump casing; 4 is the drive shaft extending to the surface of the ground and operated from the pulley 5 or other suitable driving means; 6 is the shaft casing extending upwardly from a point adjacent the pump neck to the platform 7 located at the surface of the ground, such casing being connected in the platform by means of the coupling 8; and 9 is a stuffing 'boxconstruction located at the upper end of the pump casing and operable by a I movement of the shaft casing and other cooperating parts as hereinafter described.

At the lower end of the shaft 6 is the combined bearing and coupling member 10 screw-threaded at its upper end to the shaft casing and to its lower end to the sleeve 11. The sleeve 11 is internally threaded at its lower end and screwed down over the sleeve 12'. The sleeve 12 has swiveled there- 'on a ring 13 provided with arms 14 connected at their outer ends to the ringlfi. The ring 15 is provided with a plurality of perforations carrying the rods 16, such rods extending downwardly through the packing ring 17 and through the metal ring 18.

The packing ring may be made of any suitable packing material such as rubber or composition rubber and fabric, and is supported upon its lower side by the ring 18.

while its upper portion is engaged by the flange 19,-constituting the upper edge of the pump casing and suitably slotted at intervals as indicated at 20 to permit of the pas ing wit-h its sleeves l1 and 12 are moved downward with respect to the pump neck member 3 so that the bearing 10 has its portion 22 screwed into the sleeve 21. 'ith the parts so arranged the flange 19 of the pump lies spaced above the packing 17 so that the pump can be lowered to any desired point in the well. 'hen the pump reaches its proper position and it is desired to tighten the packing the shaft 1: is engaged at its upper end by a suitable griping tool and the shaftcasing 6 rotated to unscrew the connection between the part 22 and the sleeve 21, after which the shaft with the. pump supported thereby is lowered with respect to the shaft casing until the parts occupy the position indicated in Fig. 2, the flange 19 of the pump casing engaging the packing 17 and serving to compress the same downwardly and laterally and make a tight joint between the periphery of the pump casing and well casing 2, the weight of the pump being sufficient to accomplish this function.

lVhen it is desired to remove the pump from the well for any purpose, such as replacement or repair, the platform 7 and discharge head are removed, the shaft is again gripped and supported, thus supporting the weight of the pump, and the shaft casing is moved downwardly until the portion 22 of the bearing 10 engages the threaded sleeve 21, after which a rotation of the shaft casing connects the two parts. This lowering of the shaft casing, of course, lowers the ring 18 and the packing carried thereby, the packing at this time being relieved from the weight of the pump so that the whole apparatus may be now withdrawn upwardly from the well casing by means of a suitable lifting device applied to the shaft casing.

In case of a breakage of the shaft, special means are employed for supporting the weight of the pump during the operation of relieving the packing and shaft casing of the weight, such means comprising one or more rods 23 secured at their lower ends into the lugs 24 of the pump flange and provided with hooks 25 at their upper ends. These hooks are adapted to be engaged by the hookcollar 26,which may be slid down over the shaft casing, being supported and operated from a pipe from above or by means of a' suitable rod or other means. After the hooks on the members 23 and 26 are engaged and proper support provided for the member 26 the shaft casing 6 may be lowered to release the packing and after the part 22 is screwed into position the pump may be withdrawn upwardly from the well by means of the shaft casing. The structure also presents an advantage over one which is seated on the bottom of the well in that with a construct1on of this kind it is possible to re-position the pump depending upon changes of water level such as the lowering of the lever after the well has been in use a considerable time.

What I claim is:

1. I11 combination in a well mechanism, a well casing, a pump in the casing, a drive shaft extending upward therefrom,- paclc ing means between the well casing and pump supported from the surface of the ground, and releasable therefrom, means on the pump engaging the packing whereby the weight of the pump is applied to said packing, and a shaft casing for the shaft.

2. In combination in a well mechanism, awell casing, a pump in the casing, a drive shaft extending upward therefrom, a shaft casing, packing means supported by the shaft casing, and means on the pump engaging the packing whereby the weight of the pump is applied to said packing.

3. In combination in a well mechanism, av well casing, a pump in the casing, a drive shaft extending upward therefrom, a shaft casing, packing means supported by the shaft casing, means on the pump engaging the packing whereby the weight of the pump is applied to said packing, and means whereby the weight of the pump may be transferred to the shaft to Permit the release of said packing.

4. In combination in a well mechanism, a well casing, a pump in the casing, a shaft casing having a slip connection at its lower end whereby it may be moved vertically with respect to the pump. a drive shaft in the shaft casing. packing means between the well casing and pump carried by the shaft casing, means on the pump engaging the packing whereby the weight of the pump is applied to said packing, and means whereby the shaft casing may be locked at its slip connection in the lower portion to permit the weight of the pump to be carried by the shaft and thus relieve the packing of the weight of the pump when it is desired to remove the pump from the well casing.

5. In combination in a well mechanism, a well casing, a pump in the casing, a drive shaft extending upward therefrom, packing means between the well casing and pump adjacent the upper portion of the pump supported from the surface of the ground, and releasable therefrom, means on the pump engaging the packing whereby the weight of the pump is applied to said packing, and a shaft casing for the shaft.

6. In combination in a well mechanism, a well casing, a pump in the casing, a drive shaft extending upward therefrom, a shaft casing, packing means supported by the shaft casing, means on the pump engaging the packing whereby the weight of the pump is applied tosaid packing, means whereby the weight of the pump may be transferred to the shaft to permit the release of said pack- 1ng, and means carried by the pump and adapted to be engaged from the surface of the ground to permit of the release of the packing in case the shaft breaks.

7. In combination in a well mechanism, a Well casing, a pump in the casing, a drive shaft extending upward therefrom, a shaft casing, packing means supported by the shaft casing, means on the pump engaging the" packing whereby the Weight of the pump is applied to said packing, means whereby the weight of the pump may be transferred to the shaft to permit the release of said packing, and hook means carried by the pump and adapted to be engaged by co-operating hook means operated from the surface of the ground to permit the release of the packing in case the shaft breaks.

S. N. HALL. 

